At an amusement park, Bill enjoys two rides on the water slide and three rides on the Ferris wheel, and it cost him $15.55. If the water slide costs $3.95, find the cost of the Ferris wheel.

$2.55

Step-by-step explanation:

Let

Cost of Water slide = x

Cost of Ferris wheel = y

Cost of Water slide = $3.95

Cost of Ferris wheel = ?

Total cost = $15.55

The equation

2x + 3y = 15.55

2(3.95) + 3y = 15.55

7.9 + 3y = 15.55

3y = 15.55 - 7.9

3y = 7.65

y = 7.65 / 3

= 2.55

y = $2.55

The cost of the Ferris wheel is $2.55

b. an equilateral triangle inscribed in a circle

step-by-step explanation:

we are given the figure of two circles having a triangle inside.

now, we know that,

"when a figure is lying inside an another figure, then the outside figure is known as circumscribed figure and the figure lying inside is referred to as the inscribed figure".

as we see that, the circles are containing the triangle completely.

thus, the circles are the circumscribed figures and the triangle is the inscribed figure.

hence, we get, 'an equilateral triangle is inscribed in a circle'.

[2, 2.5)

(2.5, 3]

step-by-step explanation:

i think its these two not sure [2, 2.5)

(2.5, 3]